Machine vision technology has been widely used in industrial inspection

Machine vision technology is getting more and more widely used in the field of China’s industrial product quality testing. Especially the technology of the products size measurement and appearance defect detection. This technology has taken full responsibility.
The so-called “machine vision”, that is the way using machine replace human eyes to measure and estimate. Machine vision system is equivalent to human eyes. The eyes transfer images they have seen to control chip and then make judgments by control program. A typical machine vision system includes: light, lens, camera, IPU (or image capture card)，image processing software，monitor, communication/input and output unit, etc.

Machine vision system is with high detecting precision, which can get plenty of information quickly and make process automatically. So this kind of technology is being widely used in the field of inspection. Relative to the traditional labor-intensive detection model, machine vision system replaces a lot of detection workers. And with this, the detection model “human eyes+ simple tools” upgrades to fast and high-precision automatic detection results

As an inland well-known non-standard custom inspection equipment supplier, Beijing Leadertech Instrument co., ltd has skillfully applied this technology on the production line of industrial products. It accurately measures a lot of products, detect and judge their appearance defects, then distinguish the products strictly.

Leadertech Instrument has made series of major achievements in the field of machine vision technology and has developed many detecting instruments and solutions, some examples are as follows:

1、Comprehensive detecting equipment of NbFeB permanent magnet products: Especially for the size and appearance detection of all kinds of small NbFeB magnet material. ( Notes: NdFeB material is an important kind of rare-earth material. One of the direction of application is used to create many kinds of magnet conductor, which include various mobile phone spare parts material, such as speaker, telephone earphone, receiver, rumble motor, cellphone cameras, earphone, etc. ). This equipment adopts machine vision technology. It measures the size of NdFeB workpieces and detects their appearance defects, then classify and checkout the products. At present, one such device can replace 10-20 QC workers and its maintenance charge is very low.

Besides, after some simple adjustment, this detecting equipment can also be applied to the comprehensive detection of size and appearance of small components and workpieces. For the manufacturers that make NdFeB material and other flaky material, this equipment has brought good news to the quality detection of product line, which is a high-end device to fill the blank of industry.

2. Fast detection solution of hard alloy blade/ bar: These two solutions all use machine vision technology, which detect the dimensional tolerance and geometrical tolerance of alloy blades also the size and appearance of many types of bars, then make classification and pack automatically. There are no quick-wear part with the whole equipment and the maintenance charge is very low.

3. Fast sorting equipment of textile machinery bearings: It makes up of shell measurement sorting equipment and mandrel measurement sorting equipment, uses machine vision technology and non-contact optical measurement, detects shell and mandrel of top roller bearings quickly, then make classifications. It adopts three-point calibration principle on the shell to measure inside dimension and geometrical tolerance. And with the mandrel, it takes shadow casting principle to make measurement.

4. Automatic detection equipment of railway wheelset dimension: Automatic detection equipment of railway wheelset that Leadertech Instrument developed can deal with the measurement of many kinds of wheelset. The product adopts the technology of machine vision, laser triangulation of distance, motion control. That is with the features of high precision, high reliability and simple to operate. The technical index is significantly higher than the standards of ministry of railways.

5. Automatic detection equipment of valve: This project adopts machine vision technology and uses shadow casting principle to detect the dimensions of axial cross sections of valve. Light screen sensor motions along valve axis, then gets the valve axial dimensions and radial dimensions through scanning valve configuration. When valve rotating, you can get radial run-out data by light screen sensor and then it can judge automatically.

6. Fast detection equipment of bullet: This equipment is special for national defense agencies. It synthetically reflects the skillful technology of Leadertech in the field of machine vision applications. Using machine vision and laser testing technology, it can detect the dimension and appearance defects of bullet casings automatically and rapidly. There are 16 detection indexes and they all process in one device. Its detection efficiency can reach 65 per minute and it will automatically classify and pack qualified products and unqualified products.

There are much more application examples of Leadertech Instrument in the field of machine vision. It has combined machine vision, electronic software, virtual instrument, etc., that is why Leadertech Instrument appears diversified in the innovation and development. In addition to dimension and appearance, detection field involves mechanics, electrics, temperature, acoustic vibrations, leakproofness, etc.

At present, the detection equipment suppliers, represented by Leadertech Instrument, are widely applying the technology of machine vision on the production detection of different kinds of products in manufacturing industry. Especially in the detection of dimension and appearance defects, this technology has hold the mainstream and has been further and deeply developing.